How to choose your glasses lenses
It is difficult to navigate among the many offers in terms of optical glasses. In addition, the severity of the eye problem can influence the choice. The price varies according to the type of glass chosen. Through this article, learn how to determine the essential criteria for choosing the right spectacle lenses.
Lens design technology can influence vision comfort. Several criteria are therefore taken into consideration for the choice of corrective lenses, in the first place, it will depend on your medical prescription for the type of lenses you will have to choose. There will then be a choice of comfort elements such as anti-reflective coating, tint, UV protection, etc. To discover our full range of lenses and prices: our range of lenses
Spectacle lenses don't just correct vision
While it is essential to see well to live well, the wearer sometimes encounters difficulties in choosing ophthalmic lenses adapted to their needs visuals.
Bringing you the best of vision day after day is not only correct myopia, astigmatism, presbyopia or farsightedness. It is also to bring you maximum comfort and precision in all circumstances, in all activities you undertake.
Your lenses also contribute to preserving your visual health in the long term, protecting your eyes harmful blue light and UV rays.
Vision correction: The different lens designs
When it comes to eyeglass lenses, it exists 3 major design categories to distinguish:
1. Single vision lenses
They are used for correct the most common vision problems, to know myopia, farsightedness and astigmatism. They have the same corrective power over their entire surface.
2. Multifocal lenses
Used to treat presbyopia and special visual impairments, they are composed of two or three correction zones (near view, intermediate view and far view). Formerly widely used, they are neglected because of their unattractive appearance.
3. Progressive lenses
Invented by Frenchman Bernard Maitenaz in 1959 (progressive lenses Varilux), they also allow correct presbyopia using different correction zones. But unlike multifocals, the correction is done gradually over the entire surface of the glass. The delimitation between the different zones is invisible and the correction is done more smoothly. With only one pair of glasses, you can see both near and far, as well as in intermediate vision.
Eye protection
Anti-reflective
Anti-reflective glass is glass that has been treated to reduce reflections and increase light transmission. It will also reduce surface glare and provide better contrast definition by reducing surface reflection. Standard anti-glare will have the disadvantage of being more messy. High-end anti-reflective coatings will be easier to maintain, even more transparent and more resistant.
Sun lenses suitable for sight
These glasses are equipped with tinted lenses to standards and able to reduce the intensity of light. The models available today offer different categories of protection ranging from UV0 to UV4, the most common being the UV3 index which filters between 78% and 85% of the light. The lower the UV index, the less light protection there will be.
Sunglasses with a protection factor of 4 are thus recommended against intense light, but they are not authorized for driving. Treat yourself during the summer periods, during this period, the sun can be particularly hot and it is important to protect the eyes, a pair of sunglasses in sight can be very practical.
blue light blocking glasses
Wearing these glasses protects you from eye fatigue triggered by the famous blue light. Concretely, this name designates a kind of wavelength in the blue-violets whose intensity can go up to 455 nanometers. These waves are more energetic and will strike the retina with enough power. Although blue light is everywhere, it is particularly intense in LED screens. With these, each diode finds a place on the surface of the screen. A subject who tends to look closely at his screen will thus receive more light. Of course, these glasses do not filter 100% blue light. However, they can provide visual comfort in case of dry eyes.
Photochromic lenses
These tinted lenses are often confused with sunglasses. However, photochromic lenses have an interesting feature. They tint depending on the amount of UV to which they will be subjected. They gradually regain their initial transparency when the exposure disappears. Adapting these lenses to UV intensity guarantees you visual comfort depending on changes in light. In addition, they have the advantage of being compatible with different types of frames and almost all corrections. Always for more comfort, these lenses can be compatible with anti-reflective and anti-blue light treatments.
The elements of comfort
rest glasses
Do you need rest glasses? When you work on a computer for a while, it is common to feel a eyestrain, a blurry vision, red eyes and other symptoms. This is because the visual demands of computer work are different from those associated with most other activities. This eye strain or blurred vision during computer work may be due to an inability of your eyes to stay focused precisely or because your eyes have trouble changing focus. At this point it's time to ask yourself if you need rest glasses.
The thinning of glasses
If you have medium or heavy prescription, thin lenses are the right choice if you want thin and light lenses. This will make your glasses more attractive and comfortable. Most spectacle wearers are nearsighted, resulting in corrective lenses that are thin in the center but thicker at the edge of the lens. The stronger the prescription, the thicker the edges.
For farsighted people, the glass will be thicker in the center of the glass, if they are not thinned, they will have an unattractive magnifying effect. Our opticians are there to advise you on the right degree of thinning according to your choice of glasses and your prescription.
Anti-scratch treatments
The hardened treatment or anti-scratch is included on all our corrective lenses. Find out how it works here. The vast majority of corrective lenses are now made from polymer plastic.
Unlike mineral glasses which do not need it, plastic glasses are easily scratched and need a hardener layer that will protect them. It is nevertheless essential to maintain your glasses well and to pay attention to them. The hardened treatment won't prevent your lenses from getting scratched if you drop them, do not pay attention to them and do not maintain them well.